}

    @Override
    public boolean equals(@Nullable Object obj) {
      if (NativeTypeVariableEquals.NATIVE_TYPE_VARIABLE_ONLY) {
        // equal only to our TypeVariable implementation with identical bounds
        if (obj != null
            && Proxy.isProxyClass(obj.getClass())
            && Proxy.getInvocationHandler(obj) instanceof TypeVariableInvocationHandler) {

    }

    @Override
    public boolean equals(@Nullable Object obj) {
      if (NativeTypeVariableEquals.NATIVE_TYPE_VARIABLE_ONLY) {
        // equal only to our TypeVariable implementation with identical bounds
        if (obj != null
            && Proxy.isProxyClass(obj.getClass())
            && Proxy.getInvocationHandler(obj) instanceof TypeVariableInvocationHandler) {

    public int hashCode() {
      return Objects.hash(var.getGenericDeclaration(), var.getName());
    }

    @Override
    public boolean equals(@Nullable Object obj) {
      if (obj instanceof TypeVariableKey) {
        TypeVariableKey that = (TypeVariableKey) obj;
        return equalsTypeVariable(that.var);
      } else {
        return false;
      }
    }

    @Override
    public String toString() {

    public int hashCode() {
      return Objects.hash(var.getGenericDeclaration(), var.getName());
    }

    @Override
    public boolean equals(@Nullable Object obj) {
      if (obj instanceof TypeVariableKey) {
        TypeVariableKey that = (TypeVariableKey) obj;
        return equalsTypeVariable(that.var);
      } else {
        return false;
      }
    }

    @Override
    public String toString() {

			if err != nil {
				return nil, err
			}
			ctx = lkctx.Context()
			defer ns.Unlock(lkctx)
			opts.NoLock = true
		}

		obj, err := er.getObjectInfo(ctx, bucket, object, opts)
		if err == nil && opts.CheckPrecondFn(obj) {
			return nil, PreConditionFailed{}
		}
		if err != nil && !isErrVersionNotFound(err) && !isErrObjectNotFound(err) && !isErrReadQuorum(err) {
			return nil, err
		}

			if err != nil {
				return ObjectInfo{}, err
			}
			ctx = lkctx.Context()
			defer ns.Unlock(lkctx)
			opts.NoLock = true
		}

		obj, err := er.getObjectInfo(ctx, bucket, object, opts)
		if err == nil && opts.CheckPrecondFn(obj) {
			return objInfo, PreConditionFailed{}
		}
		if err != nil && !isErrVersionNotFound(err) && !isErrObjectNotFound(err) && !isErrReadQuorum(err) {
			return objInfo, err